Watery eyes are one of the most common reasons women over 60 give up on eye makeup, and they are rarely discussed as a makeup problem at all. They are, and most of the fix is mechanical.
Why eyes water more with age. Several ordinary changes compound. Tear film quality declines, and paradoxically a dry, irritated eye surface triggers reflex tearing — so watering and dryness are often the same condition rather than opposites. Lid laxity means the lower lid sits slightly away from the eye, so tears pool and spill rather than draining. Drainage itself gets less efficient. Wind, cold, reading and screens all make it worse. None of that is something eyeliner can change, which is why the answer here is about working with it.
The waterline is the wrong target, and almost every tutorial recommends it. Lining the inner rim — the wet strip between the lashes and the eyeball — is a staple of eye makeup instruction, and on a watering eye it is the one placement guaranteed to fail. It is sitting in liquid. Within minutes it has dissolved, migrated into the tear film and smeared under the lower lid, and on top of that it can be genuinely irritating, which triggers more watering.
What works instead is the lash base from above. Press a firm pencil into the gaps between the upper lashes, working from above rather than from inside the lid. That puts the pigment on a surface that is not wet, it makes the lash line look denser, and it gives the defined-eye effect people are using the waterline for. The technique is covered in detail on how to apply eyeliner on hooded eyes over 60.
Formula matters second. A firm gel pencil or a gel in a pot is more water-resistant than a soft kohl, which is the formula most likely to be in a drawer from twenty years ago. Liquid liners dry hard and then flake off a moving, damp lid. Waterproof formulas earn their place here more than anywhere else on the site, with the honest caveat that they are harder to remove from skin that is thin and loose.
And the mascara has to agree with it. A watering eye smears mascara onto the skin below, and a perfectly placed liner does not help if there is a gray smudge under it by eleven. One pick below is a mascara for that reason, and why mascara smudges under the eyes covers the mechanism.